At around 4pm yesterday registers at Woolies stores unexpectedly shut down due to a "system fault" - the fault lasted around 30 minutes. They also did not have word on an ETA for when services may resume.
The grocer is yet to confirm the cause of the outage.
In a statement, Woolworths said the outage was related to an IT systems update before registers came back online by about 4.30pm. "We apologise for any inconvenience caused".
This story is developing.
Numerous customers have shared images on social media of long queues at cash registers and stores that have closed their doors.
Social media posts indicate stores impacted locally include Walkerston and Caneland Central.
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"Shoppers have been told to leave groceries in baskets in the aisle", one customer from Brisbane wrote on Twitter.
Others have been told to leave the stores.
Woolworths has apologised "unreservedly" for a technical glitch which left shoppers across Australia stranded.
Woolworths stores across the country have had to shut down registers and are unable to make sales.
The ABC reached out to Woolworths for comment.